File:66740 Mountfield to Doncaster Down Decoy 4E19 (16481817512).jpg

GB Railfreight's class 66/7 (JT42CWR) number 66740. Here it is photographed hauling empty gypsum containers mounted on flat wagons from Mountfield Sidings (GBRf) East Sussex to Doncaster Down Decoy (4E19) on 9 February 2015. To comply with gas emission regulations limestone (CaCO3) delivered to the power station (by other trains) is used to remove sulfur dioxide (SO2) from the flue gasses, by converting it into gypsum (CaSO4·2H2O). The waste product (gypsum) is then delivered to British Gypsum's Robertsbridge Works by train where it is used to manufacture plaster and plasterboard.

According to Realtime Trains the route and timings were; Mountfield Sidings [XMX]....1130..........................1216..........................46L Mountfield Tunnel.................1132..........................1218..........................46L Robertsbridge [RBR].............1134 1/2....................1224 1/2..................50L Wadhurst [WAD]....................1147...........................1236 1/2..................49L Tunbridge Wells [TBW] 1.....1156/1158.................1247 1/4/1250 1/4..52L Tonbridge [TON] UF.............1215..........................1300.........................45L Sevenoaks [SEV] 1.................1225.........................1311...........................46L Chelsfield [CLD].....................1231 1/2....................1320 1/2..................48L Orpington [ORP] 2.................1233.........................1322.........................49L Petts Wood Junction............1234 1/2...................1324 3/4..................50L Bickley Junction[XLY]..........1252.........................1325 1/2..................33L Bromley South [BMS]...........1257.........................1327 3/4..................30L Shortlands [SRT]....................1300.........................1328 3/4..................28L Shortlands Junction..............1301..........................1332..........................31L Bellingham [BGM].................1304 1/2...................1335 1/2....................31L Nunhead [NHD] 1...................1308.........................1342 1/2...................34L Peckham Rye [PMR] 3..........1309 1/2...................1344 3/4..................35L Crofton Road Junction.........1310 1/2....................1347 1/4...................36L Denmark Hill [DMK] 1............1311 1/2.....................1348.........................36L Voltaire Road Junction........1317...........................1352.........................35L Clapham Junction [CLJ] 5...1330 1/2...................1359.........................28L Wandsworth Town 2............1332 1/2...................1403 1/4...................30L Putney [PUT] 3.......................1335.........................1406 1/2...................31L Barnes [BNS] 3.......................1337 1/2...................1409 1/2..................32L Barnes Bridge [BNI] 2...........1339 1/2...................1411 3/4....................32L Chiswick [CHK] 2...................1342.........................1413 1/4.....................31L New Kew Junction................1344 1/2...................1418 1/2....................34L Kew East Junction................1347 1/2...................1419 1/2...................32L Acton Central [ACC].............1355.........................1427..........................31L Acton Wells Junction...........1357 1/2...................1431 1/2....................34L Willesden Junction 4............1359 1/2/1401 1/2...1434 1/4/1436 1/2..35L Kensal Green Junction........1403 1/2...................1438 3/4..................35L Brondesbury Park [BSP] 1....1407..........................1441..........................34L West Hampstead 2...............1409 1/2...................1443.........................33L Hampstead Heath 2.............1413...........................1445 1/2..................32L Gospel Oak [GPO].................1415..........................1447 1/4...................32L Alexandra Palace [AAP] 3...1443 1/2...................1501 1/2....................18L New Southgate [NSG] 4......1446.........................1504 1/2...................18L Oakleigh Park [OKL] 4..........1450.........................1508 1/2...................18L New Barnet [NBA] 4..............1451 1/2....................1510 1/2....................19L Hadley Wood [HDW] 4.........1454.........................1513 1/4.....................19L Potters Bar [PBR] 4................1458.........................1517...........................19L Brookmans Park [BPK] 4......1501..........................1520 1/2...................19L Welham Green [WMG] 2......1503.........................1523 3/4..................20L Hatfield [HAT] 3.....................1507.........................1527 1/2...................20L Welwyn Garden City 3.........1511 1/2.....................1530 3/4..................19L Welwyn North [WLW] 2........1526 1/2...................1532 3/4.....................6L Woolmer Green Junction....1529.........................1534 3/4.....................5L Knebworth [KBW] 4...............1530.........................1536 1/4......................6L Stevenage [SVG] 4................1532 1/2...................1538 3/4.....................6L Hitchin [HIT] 2........................1540 1/2...................1542 3/4.....................2L Arlesey [ARL] 2......................1544 1/2...................1547 3/4.....................3L Biggleswade [BIW] 4............1548.........................1551 3/4......................3L Sandy [SDY] 2........................1550 1/2...................1554 1/4.....................3L St Neots [SNO] 1....................1556 1/2...................1601.............................4L Huntingdon [HUN] 3.............1602 1/2...................1607 3/4.....................5L Holme Junction [XHO].........1611 1/2.....................1619 1/4......................7L Fletton Junction.....................1617 1/2....................1627............................9L Peterborough [PBO] 4.........1620 1/2/1632 1/2..1631 1/2/1634 1/4.......1L Helpston Junction.................1640.........................1642............................2L Tallington Junction...............1644 1/2...................1646 3/4.....................2L Stoke Junction.......................1702/1710................NoRep/1711 3/4.........1L Grantham [GRA] 2.................1716 1/2....................1718 3/4......................2L Claypole Loop........................1725.........................1726 1/4.......................1L Newark North Gate 1............1729 1/2/1734 1/2...1732 1/4/1732...........2E Newark Crossing East Jn....1737..........................1735 1/2......................1E Gainsborough Lea Road ....1819..........................1814............................5E Gainsborough Trent Jn........1827 1/2...................1815...........................12E Bessacarr Junction...............1849 1/2...................1834..........................15E